Clutch structure for presser foot of embroidery sewing machine
US7571689B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2008 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | May 19, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B69/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A clutch structure for a presser foot in an embroidery sewing machine is provided. The clutch structure includes a guide member, to which the presser foot drive link is rotatably connected, and through which the needle bar guide shaft passes, a spring connecting member mounted on the outer circumference of the needle bar guide shaft and inside the guide member, a resilient member mounted on the outer periphery of the spring connecting member, and a pivot member mounted inside the guide member so as to be pivotable around the needle bar guide shaft within a certain angular range by the height adjusting mechanism and the resilient member. Upon a head-interval adjusting operation, the unnecessary driving of the presser foot is prevented, so that the occurrence of vibrations and noise as well as the unnecessary wear of a needle bar, a presser foot support, and a presser foot holder can be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.